So I am solving a purely integer linear optimization problem with Pyomo on a single computer (core i-5, 12 GB RAM). The problem has around 10000 variables and 300 constraints. For doing this, I am calling the solver GLPK. However, I find that the problem cannot be solved in a timely manner. Yeste...

I have a problem, which is similar to Assignment Problem, described as follows: The problem instance has a number of workers and a number of tasks. Any task can only be assigned to a subset of the workers. A task should be assigned to exactly one worker. Each task has a different difficulty, the...